Species
Pentagonocyclicus subhelenae Yeltyschewa, 1975
Synonymy list
1975 Pentagonocyclicus subhelenae Yeltyschewa, sp. nov. — Yeltyschewa , pp. 135, fig. II 25-26
Selection of related publications
Yeltyscheva, R. S. 1975. Krinoidei pograničnyh sloev ordovika i silura Podolii. Voprosy paleontologii VII, 124-144. Izdatel'stvo Leningradskiogo Universiteta.
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Echinodermata |
| Subphylum | Pelmatozoa |
| Class | Crinoidea |
| Organism group | Stemmed echinoderms outgroup (informal) |
| Genus | Pentagonocyclicus |
| Species | bifidus |
| concentricus | |
| constrictus | |
| inaequalis | |
| stellatus | |
| subhelenae |
References based on distribution
- Yeltyscheva, 1975 Wenlock